Improvement in spoke-tenoning machines



- A. J. ROBERTS.

Spoke-Tenoning "Machine.

No. 212,507. Patented Feb. 18, 1879.

UNITED STATES AMMI J. ROBERTS, OF CLINTON, \VISCONSIN.

IMPROVEMENT IN SPOKE-TENONING MACHINES.

Specification forming part of Letters Patent No. 212,507, dated February18, 1879; application filed November 12, 1878.

To all whom it may concern:

Be it known that I, AMMI J. Ronnnrs, of Clinton, Rock county, Wisconsin,have invented an Improvementin Tenonin g-Machines, of which thefollowing is a specification:

The nature of my invention relates to certain new and usefulimprovements in that class of machines employed for turning tenons uponthe ends of spokes, whiffletrees, and other articles.

The invention consists in the peculiar details of construction of theparts and their various combinations, as more fully hereinafterdescribed.

In the drawings, Figure l is a perspective view. Fig. 2 is a horizontalsection on the line a" 00 in Fig. 5. Fig. 3 is an elevation of theface-plate. Fig. 4 is a cross-section at yy, Fig. 1. Fig.5 isalongitudinal section through a section of the bed and face-plate.

In the accompanying drawings, which form a part of this specification, Arepresents the bed, made in two parts, as shown, the part B being hingedto the part A, so that it can be lowered at right angle thereto, andwhen upon the same plane the two parts are secured together by the hookor link a. G is a standard, secured in any convenient way to the bed A,and is provided at its upper end with a longitudinal box or bearing, D,within which the shaft E may rotate, and at the same time have alongitudinal motion. The outer end of this shaft terminates in a tang,b, to receive a brace or wrench, by means of which the device isoperated. To the opposite end of this shaft is secured the head 0, whichis provided with two parallel eXtensor-arms, d, to the outer ends ofwhich the face-plate or cutter-head F is removably attached. Through aslot or throat, c, in said plate is adjustably secured the cutter h, itscuttingedge protruding through said throat. Projecting from the rear ofthis faceplate is the slotted arm 2', to which one end of the cutter 7cis adjustably secured, the other end of said knife being also adjustablysecured in the slotted arm m, which extends from the slide G, which isconstructed, as shown in Fig. 4, to slide upon the extensor arms d.

In suitable mortises in the part B are inserted the bearing-blocks Hvertically adjustable by means of the set-screws it. Through a slot, 0,in said part B,- and between said bearing-blocks, is inserted the red I,the upper end of which terminates in a hook, as shown, said hook and rodalso being vertically ad j ustable by means of the set-screw r.

It will be noticed that the cutter is is adjustable radially withrelation to the axis of the device, in order to give any required bevelto the tenon, the length of which, tenon may be determined by theposition of the slide, which performs the double function, to wit, tohold the outer end of the cutter, and to form a stop to determine thelength of the tenon. In the rotation of the device the cutter h finishesup the shoulder of the tenon.

The device may be operated to cut larger or smaller tenons upon bevel orstraight lines.

The bearing-blocks are made adjustable, as well as the rod and hook I,to accommodate larger or smaller work which it may be desired to presentto the rotating cutter, and the end of the bed B may be lowered outofthe way, as is often necessar ,when desired.

hat I claim as my invention is- 1. A tenonin g device, consisting of thebed A, standard 0, box D, shaft E, provided with eXtensor-arms d,face-plate F, slide G, and adjustable cutters h k, substantially as andfor the purposes set forth.

2. In a tenonin g device, substantially as described, the adjustableslide G, performing the two functions, to wit: adjust-ably carrying theouter end of the cutter is, and forming the stop to determine the lengthof the tenon, substantially as herein described and set forth.

In testimony whereof witness my hand this 16th day of September, 1878. I

AMMI J. ROBERTS.

Witnessesz' H. S. WoosTnR, CHAS. H. STEWART.

